<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Index.jsp</title>
</head>
<body>
<center>
<% 
application.setAttribute("email","amit@gmail.com");
out.println(application.getAttribute("email"));
 application.setAttribute("email","ajeet@gmail.com");
 out.println(application.getAttribute("email"));

 application.removeAttribute("email");

 out.println(application.getAttribute("email"));

%>

</center>

</body>
</html>